// Copyright (c) 1999-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

#if !defined(__IMAPCONNECTIONOBSERVER_H__)

#define __IMAPCONNECTIONOBSERVER_H__

/** IMAP4 connection observer events.

@see MMsvImapConnectionObserver 

@publishedAll

@released

*/

enum TImapConnectionEvent

	{

	/** Connecting to server. */

	EConnectingToServer,

	/** Synchronising folder list. */

	ESynchronisingFolderList,

	/** Synchronising inbox. */

	ESynchronisingInbox,

	/** Synchronising folders. */

	ESynchronisingFolders,

	/** Synchronisation complete. */

	ESynchronisationComplete,

	/** Disconnecting. */

	EDisconnecting,

	/** Connection completed. */

	EConnectionCompleted

	};

//	Mix-in class to allow observation of the stages of an IMAP operation

//

class MMsvImapConnectionObserver

/** Abstract base class used for IMAP4 connection observation. 

A derived class to handle IMAP4 connection events should override the HandleImapConnectionEvent() 

member function. 

Objects that implement this interface are passed as a packaged parameter 

to CImap4ClientMtm::InvokeAsyncFunctionL() when a connection command is issued.

@publishedAll

@released

@see TImap4Cmds

*/

	{

public:

	/** Called when a connection event occurs.

	@param aConnectionState Connection event */

	virtual void HandleImapConnectionEvent(TImapConnectionEvent aConnectionState)=0;

	};

#endif